TransGo

The TransGo A1-LU-BST Boost Valve for your 2001-2004 GM 6.6L Duramax Allison Transmission controls fluid flow to the converter clutch and reduces main line pressure from 255 PSI to 155 PSI when the converter clutch applies. In the LB7 transmission, the...

The TransGo A1-LU-BST-04 Boost Valve for your 2004.5-2010 GM 6.6L Duramax Allison Transmission controls fluid flow to the converter clutch and reduces main line pressure from 255 PSI to 155 PSI when the converter clutch applies. In the LB7 transmission,...

This Allison Valve Body kit is designed for 2001-2005 LB7 and LLY Chevrolet/GMC 1000, 2000, 2400 Heavy Duty, Work, Tow, or Race diesel trucks. This kit corrects, prevents and reduces the Allison transmission from going into neutral under a load, 3rd to...